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  2. Private IP - Wikipedia

    en.wikipedia.org/wiki/Private_IP

    Whereas the Internet is a public offering, MPLS PIP networks are private. This lends a known, often used, and comfortable network design model for private implementation. Private IP removes the need for antiquated Frame Relay networks, and even more antiquated point-to-point networks, with the service provider able to offer a private extranet ...

  3. Private network - Wikipedia

    en.wikipedia.org/wiki/Private_network

    In Internet networking, a private network is a computer network that uses a private address space of IP addresses. These addresses are commonly used for local area networks (LANs) in residential, office, and enterprise environments. Both the IPv4 and the IPv6 specifications define private IP address ranges. [1] [2]

  4. Reserved IP addresses - Wikipedia

    en.wikipedia.org/wiki/Reserved_IP_addresses

    Private network Used for local communications within a private network [3] 198.18.0.0/15 198.18.0.0–198.19.255.255 131 072: Private network Used for benchmark testing of inter-network communications between two separate subnets [9] 198.51.100.0/24 198.51.100.0–198.51.100.255 256: Documentation Assigned as TEST-NET-2, documentation and ...

  5. IP address - Wikipedia

    en.wikipedia.org/wiki/IP_address

    A common practice is to have a NAT mask many devices in a private network. Only the public interface(s) of the NAT needs to have an Internet-routable address. [32] The NAT device maps different IP addresses on the private network to different TCP or UDP port numbers on the public network.

  6. Intranet - Wikipedia

    en.wikipedia.org/wiki/Intranet

    But with the Internet in the 1990s came a new type of network, virtual private networks, built over this public infrastructure, using encryption to protect the data traffic from eaves-dropping. So the enterprise networks are now commonly referred to as enterprise private networks in order to clarify that these are private networks, in contrast ...

  7. IPv4 - Wikipedia

    en.wikipedia.org/wiki/IPv4

    Since two private networks, e.g., two branch offices, cannot directly interoperate via the public Internet, the two networks must be bridged across the Internet via a virtual private network (VPN) or an IP tunnel, which encapsulates packets, including their headers containing the private addresses, in a protocol layer during transmission across ...

  8. Network address translation - Wikipedia

    en.wikipedia.org/wiki/Network_address_translation

    The network has a router having both a private and a public address. The private address is used by the router for communicating with other devices in the private local network. The public address (typically assigned by an Internet service provider) is used by the router for communicating with the rest of the Internet.

  9. Public data network - Wikipedia

    en.wikipedia.org/wiki/Public_data_network

    A public data transmission service is a data transmission service that is established and operated by a telecommunication administration, or a recognized private operating agency, and uses a public data network. A public data transmission service may include Circuit Switched Data, packet-switched, and leased line data transmission.